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Description
40mm Carbo Air Double Swivel Block with Becket
Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.
Specifications:
- Sheave Ø (mm)40 mm
- Sheave Ø (in)1 9/16 in
- Maximum line Ø (mm)10 mm
- Maximum line Ø (in)3/8 in
- Maximum working load (kg)440 kg
- Maximum working load (lb)970 lb
Accessories
No accessories listed for this product.
Specifications
| SKU | 2639 |
| UPC | 097653077374 |
| Brand | Harken |
| Category | Sailing |
| Country of Origin | UNITED STATES |
| Weight | 0.22 |
| Dimensions | 5 x 3 x 2 |
| Status | Active |
| Last Synced | 10/1/2026, 2:04:51 AM |
Compliance & Shipping
Returnable
Product Literature
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Frequently Bought Together
Compare Key Features
| Feature |  Harken 40mm Carbo Air Double Swivel Block w/Becket CURRENT |  Ronstan Series 30 Ball Bearing Orbit Block - Triple - Becket |  Harken 16mm Block |  Barton Marine Ratchet Block - 55mm |  Harken 40mm Carbo Block 90° Fixed Head |
|---|---|---|---|---|---|
| Price | $90.14 | $57.81 | $17.21 | $111.66 | $41.35 |
| Brand | Harken | Ronstan | Harken | Barton Marine | Harken |
| Condition | New | New | New | New | New |
| Availability | In Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 0.22 | 0.19 | 0.1 | 0.3 | 0.11 |
| Dimensions | 5 x 3 x 2 | 4 x 2 x 2 | 3 x 2 x 1 | 6 x 3 x 2 | 5 x 3 x 1 |
| SKU | 2639 | RF35312 | 404 | 90500 | 2659 |
| Country | UNITED STATES | INDONESIA | UNITED STATES | — | UNITED STATES |
| View Item | View Item | View Item | View Item | View Item |
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Price
$90.14